I think the chute didn't open correctly. Here's the altitude plot:

The descent is much quicker.
Here's the map of the received sonde locations:

And the CUSF predictions:

I got set up earlier, and was in a different location, so I could gather data earlier in the launch. Also the last data packet was at an elevation of only 5.9 degrees, impressive with all the trees I was shooting through. I sometimes had to move the antenna a few feet either way to get through a better break in the leaves. Still a huge improvement over previous attempts.
Oh and here is a plot of the ascent / descent rate over time:
